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 Patent Profile

Patent No: IN230888 [India] Application No: 0726DEL2001
Title: A process for liquid-liquid sweetening of lighter petroleum distillates using metal phthalocyanine sulphonamide catalyst
Issue Date: 28-02-2009 File Date: 29-06-2001
Inventor(s): SAIN B, PURI SN, DAS G, BALODI BP, KUMAR S, KUMAR A, BHATIA VK, KAPOOR VK, RAI GP, RAO TSRP
IPC Classification: C10G19/02
Abstract: The present invention relates to a process for liquid-liquid sweetening of lighter petroleum distillates using metal phthalocyanine sulphonamide catalyst. In the process liquid-liquid sweetening of lighter petroleum distillates like pentanes, lighter straight run naphtha (LSRN), FCC cracked naphtha and gasoline is carried out comprising of mixing sour light petroleum distillates, alkali solution containing metal phthalocyanine sulphonamide catalyst in presence of air, whereby the mercaptans present in the light petroleum distillates are oxidized to disulphides, which being hydrocarbon soluble goes with the sweetened petroleum distillates, and the alkali solution containing is recalculated.
Licensing Option: License is already granted. Technology has already been Commercialized. Further license is possible.
CSIR-Indian Institute of Pertroleum
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Industrial Applications Catalysts [Chemistry, Chemical Processes] Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes] Speciality Chemicals [Chemistry, Chemical Processes]

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CSIR-Themes Chemicals (including leather) and Petrochemicals